Vulnerability Description
Trilium is an open-source hierarchical note-taking application. In versions up to and including 0.103.0, the public share-search endpoint does not enforce the per-note shareCredentials and shareHiddenFromTree controls, allowing an unauthenticated visitor to read the titles, tree paths, and content of protected shared notes. The endpoint authorizes only the ancestor note supplied in the request and then runs a full-text search across the entire published subtree, returning each matching note's title, share identifier, and hierarchical path without re-checking whether that individual note requires a share password or is hidden from the navigation tree. Because the search matches note content, an attacker can enumerate protected notes and use the endpoint as a boolean oracle that confirms arbitrary substrings, recovering the full contents of notes that should be gated behind a password. This issue is fixed in version 0.104.0.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://github.com/TriliumNext/Trilium/commit/49fc7b67d9d49f01833e1ad9712ec83b07
- https://github.com/TriliumNext/Trilium/security/advisories/GHSA-6rxv-6w3q-7mv9
- https://github.com/TriliumNext/Trilium/security/advisories/GHSA-6rxv-6w3q-7mv9
FAQ
What is CVE-2026-77438?
CVE-2026-77438 is a vulnerability with a CVSS score of 7.5 (HIGH). Trilium is an open-source hierarchical note-taking application. In versions up to and including 0.103.0, the public share-search endpoint does not enforce the per-note shareCredentials and shareHidden...
How severe is CVE-2026-77438?
CVE-2026-77438 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-77438?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.